1989 Honda FL400R Pilot Service Manual, Page 190Get this manual
BRAKES AIR BLEEDING Connect bleed hose to the bleed valvePump up the system pressure with the lever until there are no air bubbles in the fluid flowing out of the master cylinder and lever resistance is felt
1Squeeze the brake lever, open the bleed valve 12 turn and then close the valve
Do not release the brake lever until the bleed valve has been closed
2Release the brake lever slowly and wait several seconds after it reaches the end of its travel
Repeat steps and until bubbles cease to appear in the fluid coming out of the bleed valveTighten the bleed valve
TORQUE: N'm (0.6 kgm4,3 ft-Ib)